Thread-waxing device for sewing-machines.



Patanted Mar. I3, |900.

w. K. 'jsnuulzg THREAD WAXING DEVISE FOR'SEVIINI MACHINES.

(No Model.)

IIIIIIIII. Illil I@ 'WX ,Shiga UNITED STATES PATENT OFFICE.

VALTER K. SIIULTZ, OF PONCA CITY, OKLAHOMA TERRITORY'.

THREAD-WAXING DEVICE FOR SEWING-MACHINES.

SPECIFICATION forming part of Letters Patent N o. 645,137, dated March 13, 1900.

Application flied November 11,1899. Serial No. 736,617. (No model.)

To all whom it' may concer-n.-

Beit known that I, WALTER K. SHULTZ, a citizen of the United States, residing at Ponca City, in the county of Kay and Territory of Oklahoma, have invented a new and useful Attachment for Wax-Thread Sewing-Machines, of which the following is a specification.

My invention :relates to improvements in thread-waxing devices especially adapted for wax-thread sewing-machines and one object in view is the provision of an attachment to the wax-pot and the steam-chest of the sewing-machine by which a thread from the machine spool or bobbin may be conveniently led through the wax-pot or a thread from any other suitable source may be also led through the WaX-pot-, thus enabling a thread-waxing pot and a heating device therefor to be used for Waxing the machine-thread or a thread from a bobbin-winder and obviating the necessity for a separate waxing-pot and heating device on said bohbin-winder, whereby econonly in space in a work-room is effected and the expense of a waxing device for the bobbinwinder is saved.

A further object of the invention is to provide an attachment which may be easily applied to the steam-chest and the wax-pot, to

provide a wiper adapted to remove surplus wax from the thread and to keep the thread under tension, to insure the easy adjustment of the thread in its guide, and to simplify the construction, so as to promote the eliiciency of the attachment.

Vith these endsin view the invention consists in the novel construction and arrangement of parts, as will he hereinafter fully described and claimed.

In the drawings, Figure 1 is a sectional elevation of a part of a wax-pot and a steamchest with my attachment affixed thereto. Fig. 2 is a longitudinal section taken centrally through the attachment. Fig. 3 is a cross-section of the attachment, taken in the plane of the dotted line 3 3 of Fig. 2.

The same numerals of reference are used to indicate like and corresponding parts in each of the several figures of the drawings.

In wax-thread sewing-machines it is customary to provide avwax-pot with a heating apparatus, and in some types of machines the waX- pot is partly surrounded by a steamchest. I n Fig. 1 of the drawings a part of the wax-pot is indicated at 5, and a part of the steam-chest is indicated at 6. The steamchestis shown as having ahole 7 tapped therein, and the wax-pot is provided with an opening S, the latter being alined with the tapped hole 7. To conduct the thread 9 through the wax-pot and the steam-chest, I employ two thread-guides, -which are fixed to opposite sides of the Wax-pot and the steam-chest, so as to be in alinementwith each other; butin the drawings I have illustrated only one of these thread guides, because the positionl of the other will be obvious. Each thread-guide is in the nature ot' an attachment adapted for use in connection with ordinary waX-pots,and this attachment is indicated in its entirety by the numerallO. Theattachmentorthread-guide is ot' sectional construction, adapted to clamp in place an internal wiper-disk, through which the thread 9 is adapted to be drawn. One member of this section al thread-guide is indicated at 11 as having a body providedl with an annular flange 12, and this member is reduced to produce a nipple 13, which is exteriorly screwthreaded', as shown, said member 11 being provided with a passage which extends the full length thereof. Another member of the thread-guide is indicated at 14 as having an external sorewthread 15 and an internal screw-thread 16, and this member 14 at its inner end corresponds in diameter to that of the enlarged flanged portion 12 of the body, forming a part of the member 11. The two members 1l 14 are in alined relation and united separably together by a coupling 17, the latter having an internal flange 18 at one end and an internal screw-thread 19 at the other end. This coupling is slipped over the memberll for its liange 18 to engage loosely with the external flange 12 of said member 11, while the male threaded part 15 of the other member 14 is screwed into the female threaded part 19 of thel annular coupling. A wiper-disk 2O is interposed between the contiguous'faces-of the members 11 14. of the sectional thread-guide, and by rotating the coupling 17 on the iianged member 11 the two members are drawn forcibly together, so as to firmly clamp the wiper-disk 2O within the ICO the disk.

I I; .n

thread-guide. rlhis wiper-disk has an axial opening 21 for the passage of the fibrous thread, and against this wiper-disk operates an independently-adjustable tube 22 for the purpose of guiding the fibrous thread to the axial opening of the disk, said tube being adj ustable to exert varying degrees of pressure on the disk, so as to vary the diameter of the opening therein. The passage of the member l is somewhat greater in diameter than the longitudinal passage of vthe member 1l,l so that the member 14 does not bear against the disk to as great an extent as the inner end of the member 11, thus presenting a part of the face of the member 11 in the plane of the tube 22 for the latter to have an end bearing or thrust on the disk, which is backed u-pby apart of the member ll. This disk is made of leather ru other suitable materia so that it is compressibleto a greater or less extent, and the disk is not only clamped circumferentially between the 'two members ll 14, but it is also subjectedl .which is flared, as at 25, and is adapted to bear against one face of the disk 2O around the central opening 2l therein. Thek fiared end ofA the passage in the independently-adjustable tube is an important feature of my invention, because it may bear on the disk, so as toextend the fibers thereof for increasing the diameter of the opening 21 when said tube .is adjusted to. exert considerable pressure on The tube, however, may be ad,- justedto reduce the pressure on the disk, and thereby permit the latter to contract and frictionally embrace the fibrous thread.

The thread-guide attachment of my inven` tion may have the threaded nipple 13 readily screwed into thev tapped hole 7 of the steam,- chest, so that the inner end of the threadguide will bear firmly against the waXpot,as shown by Fig. lg'but, if desired, this nipple 13 may be screwed into a threaded opening in the wax-pot,` so as to secure a tight joint, which will effectually prevent vwater in the steam-chest from flooding the contents of the "wax-pot. It is evidentthat the coupling may be rotated to release the member 14 and the tube 22, so as to permit these parts. to be moved for obtaining access to the disk 20, thus permitting the operator to obtain access to the parts for passing the fibrous threads therethrough. Of course thevparts may be replaced, and when the coupling 17 shall have been manipulated to clamp the member la to the member 11 and hold the disk 20 firmly in place the tube 22 may be screwed into the style 'of bobbin-winder for Waxing threads may be dispensed with by theuse of my invention. f

Changes kwithin the scope ofthe appended claims may be made in the form and proportion of some of the parts, While their essential features are retained and the spirit of the in# vention is embodied. Hence I do not desire to be limited tov the precise form of all the parts as shown, reserving the right to vary therefrom.

Having thus described the invention, what I claim isl. Anv attachment. for thread-waxing devices comprising a wax-pot having an opening through a vertical Wall thereof, a steam-chest surrounding the said pot and having a tapped opening in line with. the opening in the Waxpotf, a double-flanged member with a screwthreaded portion mounted in the said tapped opening of the steamchest and having its inner end fitted close to the opening in the Waxpot, a threaded tube having an opening therethrough fiared at its inner extremity, a Wiperdisk interposed between the outer and inner extremities of the fianged member and thev saidI threaded tube respectively, a threaded member inl which said tube is mounted and a coupling member for connecting the said threaded member and the flanged member, the Wiper-diskI being-clamped near its peripheral edge between the said members and provided With a transverse. thread-opening surrounded by the inner flared end of the opening through the tube. Y

2. A thread-waxing device, consisting of a sectional thread-guide having its members separably coupled together in substantiallylongitudinal alinement and comprising an adj ustabley tubewithone extremity of the opening therein flared, and a wiper-disk clamped near its peripheral edge between certain of the said members and providedwith a trans- Verse thread-opening, the said wiper-disk being in a plane at right angles to the members of the guide, the end of the tube at theflared portionof'the opening bei-ng arranged to press forcibly against said disk aroundthe threadopening therein and against a bearing-surface afforded by another member of t-he guide.

In testimony that I` claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.

WALTER K. SHULTZ.

Witnesses:

A. H. ERWIN, CHAs. HOGDEN.

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